that's new jersey governor chris christie having the last laugh, reading his favorite letterman jokes. it's the governor's first appearance on the late show. tax season has officially begun! we've got some tips if you are preparing one of the 160 million individual tax returns that will be filed this year. here's jill schlesinger... editor at large of cbs moneywatch dot-com. how should people start? is there anything new this year about filing? is it ever better to wait to file? jill schlesinger of cbs jill schlesinger of cbs moneywatch dot- com. thanks. time is 5-- here's meteorologist lawrence with a check of weather. volunteers at a north bay animal shelter say dogs are being sent to their deaths prematurely. in one case an 18 month old stafford terrier ate a tennis ball. he was euthanized eight days later. a volunteer says medical records show the dog didn't get proper medical care before being put down. "eli should have gotten veterinary care immediately when he swallowed that tennis ball. volunteers say they'd already lined up foster and rescue care they'd already lined up foste